Physical seed dormancy in pea is genetically separable from seed coat thickness and roughness.

ABSTRACT:

Introduction

The seeds of wild pea (Pisum) exhibit marked physical dormancy due to impermeability of the seed coat to water, and the loss of this dormancy is thought to have been critical for domestication. Wild pea seed coats are also notably thick and rough, traits that have also reduced during domestication and are anecdotally linked to increased permeability. However, how these traits specifically interact with permeability is unclear.

Methods

To investigate this, we examined the genetic control of differences in seed coat characteristics between wild P. sativum ssp. humile and a non-dormant domesticated P. s. sativum accession in a recombinant inbred population. QTL effects were confirmed and their locations refined in segregating F_4/5</

SUBMITTER: Williams OR 

PROVIDER: S-EPMC10927720 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature